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The Ly-alpha luminosity function (LF) of high-redshift Ly-alpha emitters (LAEs) is one of the few observables of the re-ionization epoch accessible to date with 8-10 m class telescopes. The evolution with redshift allows one to constrain…

宇宙学与河外天体物理 · 物理学 2015-05-13 P. Hibon , J. -G. Cuby , J. Willis , B. Clément , C. Lidman , S. Arnouts , J. -P. Kneib , C. J. Willott , C. Marmo , H. McCracken

We present the H{\alpha} luminosity function (LF) derived from a large sample of Lyman break galaxies at z {\sim} 4.5 over the GOODS-South and North fields. This study makes use of the new, full-depth Spitzer/IRAC [3.6] and [4.5] imaging…

AIMS: We have compiled one of the largest normal-galaxy samples ever to probe X-ray luminosity function evolution separately for early and late-type systems. METHODS: We selected 207 normal galaxies up to redshift z~1.4, with data from four…

天体物理学 · 物理学 2009-11-13 P. Tzanavaris , I. Georgantopoulos

We use the ACS BViz data from the HUDF and all other deep HST ACS fields (including the GOODS fields) to find large samples of star-forming galaxies at z~4 and z~5 and to extend our previous z~6 sample. These samples contain 4671, 1416, and…

天体物理学 · 物理学 2009-11-13 Rychard J. Bouwens , Garth D. Illingworth , Marijn Franx , Holland Ford

Two recent luminosity function (LF) for galaxies are reviewed and the parameters which characterize the near infrared are fixed. A first LF is a modified Schechter LF with four parameters. The second LF is derived from the generalized gamma…

宇宙学与河外天体物理 · 物理学 2014-06-19 L. Zaninetti

The remarkable HST datasets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map out the evolution of the UV LF from z~10 to z~4. We have identified 5859, 3001, 857, 481, 217, and 6 galaxy candidates at…

The Ultraviolet Luminosity Function (UVLF) is a key observable for understanding galaxy formation from cosmic dawn. There has been considerable debate on whether Schechter-like LFs (characterized by an exponential drop-off at the bright…

星系天体物理 · 物理学 2019-06-26 Keven Ren , Michele Trenti , Charlotte A. Mason

We present a luminosity function for H$\alpha$ emission from galaxies at redshifts between 0.7 and 1.9 based on slitless spectroscopy with NICMOS on HST. The luminosity function is well fit by a Schechter function over the range $6 \times…

We present a star formation rate function (SFRF) at $z\sim6$ based on star formation rates (SFRs) derived by spectral energy distribution (SED) fitting on data from rest-frame UV to optical wavelength of galaxies in the CANDELS GOODS-South…

星系天体物理 · 物理学 2023-11-21 Yoshihisa Asada , Kouji Ohta

We provide an holistic view of galaxy evolution at high redshift z>4, that incorporates the constraints from various astrophysical/cosmological probes, including the estimate of the cosmic SFR density from UV/IR surveys and long GRB rates,…

星系天体物理 · 物理学 2018-05-18 A. Lapi , Claudia Mancuso , A. Celotti , L. Danese

We present a study of the galaxy Lyman-alpha luminosity function (LF) using a sample of 17 lensing clusters observed by the MUSE/VLT. Magnification from strong gravitational lensing by clusters of galaxies and MUSE apabilities allow us to…

We construct rest-frame luminosity functions at 3.6, 4.5, 5.8, 8 and 24 microns over the redshift range 0<z<2 for galaxies and 0<z<4 for optical QSOs, using optical and infrared data from the Spitzer Wide-area InfraRed Extragalactic survey.…

We combine ultraviolet imaging of the 13H survey field, taken with the XMM-Newton Optical Monitor telescope (XMM-OM) and the Neil Gehrels Swift Observatory Ultraviolet and Optical Telescope (UVOT) in the UVM2 band, to measure rest-frame…

We present the results of a new study of the K-band galaxy luminosity function (KLF) at redshifts z<3.75, based on a nested combination of the UltraVISTA, CANDELS and HUDF surveys. The large dynamic range in luminosity spanned by this new…

We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) in three different scenarios: i) GRBs follow the cosmic star formation and their LF is constant in time; ii) GRBs follow the cosmic star…

We present new z~8 galaxy candidates from a search over ~95 arcmin^2 of WFC3/IR data, tripling the previous search area for bright z~8 galaxies. Our analysis uses newly acquired WFC3/IR imaging data from the CANDELS Multi-Cycle Treasury…

宇宙学与河外天体物理 · 物理学 2012-11-06 P. A. Oesch , R. J. Bouwens , G. D. Illingworth , V. Gonzalez , M. Trenti , P. G. van Dokkum , M. Franx , I. Labbe , C. M. Carollo , D. Magee

JWST has transformed our understanding of early galaxy formation, providing an unprecedented view of the first billion years of cosmic history. In this work, we build upon our previously developed semi-analytical framework that…

星系天体物理 · 物理学 2026-01-12 Anirban Chakraborty , Tirthankar Roy Choudhury

The James Webb Space Telescope will allow to spectroscopically study an unprecedented number of galaxies deep into the reionization era, notably by detecting [OIII] and H$\beta$ nebular emission lines. To efficiently prepare such…

星系天体物理 · 物理学 2019-04-10 S. De Barros , P. A. Oesch , I. Labbé , M. Stefanon , V. González , R. Smit , R. J. Bouwens , G. D. Illingworth

This is the first paper of a series aiming at investigating galaxy formation and evolution in the giant-void class of the Lemaitre-Tolman-Bondi (LTB) models that best fits current cosmological observations. Here we investigate the…

宇宙学与河外天体物理 · 物理学 2013-10-18 A. Iribarrem , P. Andreani , C. Gruppioni , S. February , M. B. Ribeiro , S. Berta , E. Le Floc'h , B. Magnelli , R. Nordon , P. Popesso , F. Pozzi , L. Riguccini